Software Alternatives, Accelerators & Startups

Rainy Mood VS ForthWrite

Compare Rainy Mood VS ForthWrite and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Rainy Mood logo Rainy Mood

Rainy Mood is the world's most popular rain simulator. Sleep, study, and relax with the sound of rain.

ForthWrite logo ForthWrite

Email that sounds like you, and gets measurably more like you every week. Drafts in Gmail, Outlook, and the browser. Free to start.
Visit Website
  • Rainy Mood Landing page
    Landing page //
    2022-10-21
  • ForthWrite Landing Page
    Landing Page //
    2026-06-19
  • ForthWrite Dashboard
    Dashboard //
    2026-06-19
  • ForthWrite In Gmail
    In Gmail //
    2026-06-19
  • ForthWrite Pricing
    Pricing //
    2026-06-19

ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.

How it works

ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.

Key features

  • Auto-draft: replies waiting in Gmail before you open your inbox
  • Voice matching from your real sent mail, not templates
  • Recipient-aware drafts that adapt to who you are emailing
  • Prompt Lab for version-controlling and A/B testing your persona prompt
  • BYOK support: bring your own API key for Claude, OpenAI, Grok, Mistral, and more
  • Works in Gmail and Outlook on the web, plus a standalone browser widget
  • Training data export and full data portability

Who uses it

Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.

Pricing

Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.

Rainy Mood

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

ForthWrite

$ Details
freemium $12.0 / Monthly (Standard plan)
Platforms
Web
Release Date
2026 June
Startup details
Country
United States
State
California
City
San Diego
Founder(s)
Curtis Boortz
Employees
1 - 9

Rainy Mood features and specs

  • Relaxation
    Rainy Mood provides a soothing background sound of rain, which can help users relax, reduce stress, and improve focus.
  • Productivity
    The ambient sound can mask distracting noises, making it easier for users to concentrate and be productive while working or studying.
  • Customizability
    Rainy Mood often allows users to adjust the volume and mix in other sounds like thunder or birds, tailoring the experience to their preferences.
  • Accessibility
    The website is easy to access and use, requiring no downloads or registrations, which makes it convenient for users.
  • Free Version
    While there are premium features, the core functionality is free, allowing users to benefit from the service without any cost.

Possible disadvantages of Rainy Mood

  • Limited Variety
    While the service centers around rain sounds, it may lack variety for users who desire different ambient soundscapes.
  • Ads
    The free version may include ads, which can interrupt the otherwise seamless and relaxing experience.
  • Internet Dependence
    Using the web version requires an internet connection, making it less convenient for offline use.
  • Sound Quality
    Some users may find that the sound quality is not as high as other specialized ambient sound apps or platforms.
  • Subscription Cost
    Accessing premium features or the mobile app version may require a subscription, which could be a downside for budget-conscious users.

ForthWrite features and specs

  • Voice Matching
    Learns from your real sent mail, not templates
  • Auto-draft replies
    Replies waiting in Gmail before you open your inbox
  • Batch-drafting
    Draft replies for your entire inbox with one click
  • Works in browser
    Gmail, Outlook, and web browsers
  • BYOK support
    Claude, OpenAI, Grok, Mistral, and more
  • Prompt Lab
    Version control and A/B test your persona prompt
  • Free tier
    10 drafts per week, no credit card required

Analysis of Rainy Mood

Overall verdict

  • Rainy Mood is generally considered good due to its consistent delivery of soothing rain sounds, reliable performance, and therapeutic benefits.

Why this product is good

  • Rainy Mood is popular for its high-quality rain soundscapes, often used by users to aid relaxation, concentration, meditation, or sleep. The simplicity of the website and the ability to create a calming atmosphere makes it appealing to many.

Recommended for

  • People who have difficulty sleeping
  • Individuals seeking relaxation or stress relief
  • Students and professionals requiring focus for study or work
  • Fans of ambient noise and sound therapy enthusiasts

Analysis of ForthWrite

Overall verdict

  • I don't have verified information about a product called ForthWrite (forthwrite.ai). I cannot confirm its features, quality, or reputation, so I'm unable to provide an accurate assessment of whether it's good.

Why this product is good

  • No reliable data available on this specific product in my knowledge base
  • This may be a newer product, a niche tool, or possibly a fictional/hypothetical name
  • Providing details without verified information could result in inaccurate or fabricated claims

Recommended for

  • Unable to determine without verified product information
  • Consider checking the official website, user reviews on platforms like G2 or Trustpilot, and independent tech review sites for accurate details

Category Popularity

0-100% (relative to Rainy Mood and ForthWrite)
Music
100 100%
0% 0
Email
0 0%
100% 100
Work Music
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Rainy Mood and ForthWrite.

Which are the primary technologies used for building your product?

ForthWrite's answer:

Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API

What makes your product unique?

ForthWrite's answer:

ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.

Why should a person choose your product over its competitors?

ForthWrite's answer:

Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.

How would you describe the primary audience of your product?

ForthWrite's answer:

Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.

What's the story behind your product?

ForthWrite's answer:

Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Rainy Mood and ForthWrite

Rainy Mood Reviews

We have no reviews of Rainy Mood yet.
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ForthWrite Reviews

  1. curtisboortz
    ยท Founder at ForthWrite ยท
    I built ForthWrite to fix generic AI email, and I still use it every day

    I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.

    The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.

    What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.

    The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.

    Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.

    ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.

    Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.

    ๐Ÿ Competitors: Jace.ai, Fyxer, Mailmeteor
    ๐Ÿ‘ Pros:    Drafts land inside gmail and outlook; no copy-pasting from a chat window|Voice matching is on the free tier, not paywalled behind paid plans|No api key, no credit card to start; free tier runs on a server-side proxy|Learns from every edit you make before sending; drafts improve over time|Full keyboard flow: alt+shift+d to draft in any thread, no mouse required|Byok on paid plans, 9 providers supported, keys encrypted at rest|Web compose at forthwrite.ai works without installing the extension at all
    ๐Ÿ‘Ž Cons:    10 free drafts/week is enough to evaluate, not enough for a heavy inbox|Auto-draft, batch replies, and prompt lab all require the pro tier|Early-stage product; fewer third-party integrations than mature inbox tools|No mobile app: the extension and add-in are desktop-only (chrome on web, or the outlook desktop add-in)

Social recommendations and mentions

Based on our record, Rainy Mood seems to be more popular. It has been mentiond 47 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Rainy Mood mentions (47)

  • Anyone else hearing this thunder?
    I love it. It's been quite nice. If you're ever in the mood to hear that over headphones, check out something like https://rainymood.com/. Source: about 3 years ago
  • Looking for advice for writing with ADHD and autism?
    Https://rainymood.com or other soothing noise going. Sometimes I listen to simple music as well. Source: about 3 years ago
  • Listen to live air traffic control radio mixed with lofi hip hop
    If you want to take it to the next level you can also add some rain sounds: https://rainymood.com/. Source: over 3 years ago
  • [advice] many of you have undiagnosed ADHD. Procrastination is a major symptom.
    Go to a separate room away from others and put on some white noise (one site here and another here) or some study music (Lofi hiphop is a popular choice). Source: over 3 years ago
  • Tips for someone with Tunnitus?
    I open https://rainymood.com in a browser and let it run for a while through some noise-cancelling headphones. Rain seems less artificial to me than white noise and doesn't get on my nerves. Source: over 3 years ago
View more

ForthWrite mentions (0)

We have not tracked any mentions of ForthWrite yet. Tracking of ForthWrite recommendations started around Jun 2026.

What are some alternatives?

When comparing Rainy Mood and ForthWrite, you can also consider the following products

MyNoise - Custom shaped online noise machines. Many Many generic sounds

Superhuman - Superhuman is an email management tool.

A Soft Murmur - Ambient sounds to wash away distraction.

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

Noiz.io - Summarize YouTube videos with AI

Lavender - Realtime coaching for sales emails.